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CuO材料在锂电池及气敏材料以及催化中的晶面、结构、形貌效应

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化工新型材料 2024年第6期52卷 58-62页

作者：杨娜杜秋月杨淇张海东熊昆龚海峰宋钰婷重庆工商大学废油资源化技术与装备教育部工程研究中心环境与资源学院重庆400067

氧化铜(CuO)材料广泛应用于锂电池、气敏材料和催化等领域,是极具前景的新型功能材料。但是对其构效关系的内在本质和作用机制仍然未达成统一认识,制约了新型CuO功能材料的研发。从晶面、微观结构和微观形貌这样不同尺度的视角分析了Cu... 详细信息

氧化铜(CuO)材料广泛应用于锂电池、气敏材料和催化等领域,是极具前景的新型功能材料。但是对其构效关系的内在本质和作用机制仍然未达成统一认识,制约了新型CuO功能材料的研发。从晶面、微观结构和微观形貌这样不同尺度的视角分析了CuO纳米材料在锂电池、气敏材料和催化中的构效关系,展望了其构效关系研究的挑战和发展方向。

关键词：氧化铜锂电池气敏材料催化晶面效应结构效应形貌效应

Diagnostic value of elevated serum carbohydrate antigen 199 level in acute cholangitis secondary to choledocholithiasis

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World Journal of Clinical Cases 2018年第11期6卷 441-446页

作者： Yong Mei Li Chen Ci-Jun Peng Jun Wang Peng-Fei Zeng Guo-Xing Wang Wen-Ping Li Yan-Qing Luo Chao Du Kai Liu kun xiong Kai Leng Chun-Lin Feng Ji-Hu Jia Department of Hepatopancreatobiliary Surgery the Third Affiliated Hospital of Zunyi Medical University Diagnostics Laboratory Affiliated Hospital of Zunyi Medical University Department of Hepatopancreatobiliary Surgery Affiliated Hospital of Zunyi Medical University

AIM To investigate the diagnostic value of abnormal serum carbohydrate antigen 199(CA199) level in acute cholangitis secondary to choledocholithiasis.METHODS In this retrospective cohort study, the clinical data of 727 patients with choledocholithiasis admitted to the Third Affiliated Hospital of Zunyi Medical College from June 2011 to June 2017 were collected. Among these patients, 258 patients had secondary acute cholangitis and served as observation group, and the remaining 569 choledocholithiasis patients served as the control group. Serum liver function indexes and tumor markers were detected in both groups, and the receiver operating characteristic(ROC) curves were constructed for markers showing statistical significances. The cutoff value, sensitivity, and specificity of each marker were calculated according to the ROC curves. RESULTS The results of liver function tests showed no significant differences between the two groups(P > 0.05). Tumor markers including serum CA125, CA153, carcinoembryonic antigen, and alpha fetoprotein levels were also not significantly different(P > 0.05); however, the serum CA199 level was significantly higher in the observation group than in the control group(P < 0.05). The ROC curve analysis showed that the area under the curve was 0.885(95%CI: 0.841-0.929) for CA199, and the cutoff value of 52.5 kU/L had the highest diagnostic accuracy, with a sensitivity of 86.8% and a specificity of 81.6%.CONCLUSION Abnormally elevated serum CA199 level has an important value in the diagnosis of acute cholangitis secondary to choledocholithiasis. It may be a specific inflammatory marker for acute cholangitis.

关键词： Carbohydrate antigen 199 Tumor marker Choledocholithiasis Inflammatory marker Diagnosis Acute cholangitis

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旭龙水电站枢纽布置设计研究

水利水电快报 2024年第5期45卷 8-13,42页

作者：孔凡辉黄红飞王维浩熊堃长江设计集团湖北武汉430010 长江勘测规划设计研究有限责任公司湖北武汉430010 国家大坝安全工程技术研究中心湖北武汉430010

为整体提高旭龙水电站主体工程的安全可靠性与经济环保性,通过对大坝、泄洪消能、地下厂房等建筑物布置的深入研究与方案比选,使枢纽主要建筑物避开不良地质构造范围,并利用优良的河床坝基与右岸地下电站围岩条件,确定了河床布置混凝土... 详细信息

为整体提高旭龙水电站主体工程的安全可靠性与经济环保性,通过对大坝、泄洪消能、地下厂房等建筑物布置的深入研究与方案比选,使枢纽主要建筑物避开不良地质构造范围,并利用优良的河床坝基与右岸地下电站围岩条件,确定了河床布置混凝土双曲拱坝、采用全坝身泄洪3表孔加4中孔,右岸布置地下厂房,左岸布置导流洞的紧凑枢纽布置格局。该方案降低了边坡开挖高度,减小对工程区环境影响,优化减少工程占地面积与开挖等土建工程量,显著节省了工程投资,充分体现了环保设计理念,可为《长江保护法》实施后的水电站枢纽布置设计提供参考。

关键词：枢纽布置拱坝长江保护法旭龙水电站

Lateral photovoltaic effect in the Ni-SiO_(2)-Si structure with bias

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Optoelectronics Letters 2024年第5期20卷 257-264页

作者： LING Xiang ZHU Pengfei ZHU kun SONG Pei LI xiong School of Mathematics Physics and StatisticsShanghai University of Engineering ScienceShanghai 201600China School of Electrical Engineering Liupanshui Normal UniversityLiupanshui 553004China School of Railway Telecommunication Hunan Technical College of Railway High-speedHengyang 421002China

We designed a clamping device to study lateral photovoltaic effect (LPE) in Ni-SiO_(2)-Si structure with bias due to the appropriate barrier height.The LPE has a prominent sensitivity and linearity with 532 nm wavelength laser.The transient response time is 450μs and the relaxation time is 2 250μs in the Ni-SiO_(2)-Si structure without bias.The LPE sensitivity has a significant improvement with bias.The transient response time is 6μs and the relaxion time is 47μs with-7 V bias,not only improving the LPE sensitivity,but also increasing the response speed with bias.The research shows that the Schottky barrier structure can improve the sensitivity and linearity of LPE with bias effectively,and thus it can be used in position sensitive sensors.

关键词： LPE structure effect

新时代河湖水生态工程治理关键技术发展与应用

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黑龙江环境通报 2024年第3期37卷 89-91页

作者：文闪闪王有春张圆熊堃高凤娇钱涛中国电建集团湖北工程有限公司武汉430040

本文主要围绕新时代河湖水生态工程治理关键技术发展与应用进行探讨。首先,分析了河湖水生态工程治理的现状。然后,阐述了河湖水生态工程治理的关键技术。最后,探讨了新时代河湖水生态工程治理措施应用,包括河道缓冲带工程技术、生态浮... 详细信息

本文主要围绕新时代河湖水生态工程治理关键技术发展与应用进行探讨。首先,分析了河湖水生态工程治理的现状。然后,阐述了河湖水生态工程治理的关键技术。最后,探讨了新时代河湖水生态工程治理措施应用,包括河道缓冲带工程技术、生态浮床工程技术、水生态修复技术以及新材料和新技术的应用。旨在为河湖水生态工程治理提供重要参考,推动我国水环境的改善和保护。

关键词：河湖水生态工程治理水质监测技术污染物去除

Spatio-temporal variation of water salinity in mangroves revealed by continuous monitoring and its relationship to floristic diversity

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Plant Diversity 2024年第1期46卷 134-143页

作者： Wei Wang kun Xin Yujun Chen Yuechao Chen Zhongmao Jiang Nong Sheng Baowen Liao Yanmei xiong Research Institute of Tropical Forestry Chinese Academy of ForestryGuangzhou 510520PR China Guangdong Zhanjiang Mangrove National Nature Reserve Administration Zhanjiang 524088PR China

Salinity is among the most critical factors limiting the growth and species distribution of coastal plants.Water salinity in estuarine ecosystems varies temporally and spatially,but the variation patterns across different time scales and salinity fluctuation have rarely been quantified.The effects of salinity on floristic diversity in mangroves are not fully understood due to the temporal and spatial heterogeneity of salinity.In this study,we monitored water salinity at an interval of 10-min over one year in three mangrove catchment areas representing the outer part,middle part,and inner part respectively of Dongzhai Bay,Hainan,China.The number of mangrove community types and dominant mangrove species of the three catchment areas were also investigated.We found that the diurnal variation and dry-season intra-month variation in water salinity were driven by tidal cycles.The seasonal variation in water salinity was mainly driven by rainfall with higher salinity occurring in the dry season and lower salinity occurring in the wet season.Spatially,water salinity was highest at the outer part,intermediate at the middle part,and lowest at the inner part of the bay.The intra-month and annual fluctuations of water salinity were highest at the middle part and lowest at the outer part of the bay.The number of mangrove community types and dominant species were lowest at the outer part,intermediate at the middle part,and highest at the inner part of the bay.These results suggest that the temporal variation of water salinity in mangroves is driven by different factors at different time scales and therefore it is necessary to measure water salinity at different time scales to get a complete picture of the saline environment that mangroves experience.Spatially,lower salinity levels benefit mangrove species richness within a bay landscape,however,further research is needed to distinguish the effects of salinity fluctuation and salinity level in affecting mangrove species richness.

关键词： Coastal wetlands Mangroves Salinity fluctuation Species diversity Species richness

Application of some softwares and languages in medical courseware

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Application of some softwares and languages in medical cours...

The 2011 International Conference on Advanced Materials and Information Technology Processing(AMITP 2011)

作者： Jielin Fan kun xiong Clinical Medicine Eight-year Program 06 Grade Xiangya Medical School of Central South University Department of Anatomy and Neurobiology Xiangya Medical School of Central South University

Multimedia technology is widely used in education due to the reform of educational informationization. This paper reviews the characteristics of common courseware authoring softwares and languages and

ISBN: (纸本)9783037851579

关键词： softwares languages medical courseware application multimedia technology Education education software Reforming Medical Education Computer uses in education Language computer software

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按摩机械臂仿真试验台设计与实现

五邑大学学报(自然科学版) 2024年第3期38卷 48-54页

作者：何成刚张坤雄俞茹昕罗东玮刘吉华五邑大学轨道交通学院江门市五邑大学轨道交通智能运维与应急管理重点实验室广东若铂智能机器人有限公司

针对现有机械臂仿真试验台开放性和可视化程度不足等问题，本文基于QT架构与VTK工具自主设计了一款机械臂仿真试验台.试验台的机械臂基于D-H坐标系，利用VTK库进行了仿真.程序设计根据任务框图采用模块化方法，并通过MVS模型进行整体统... 详细信息

针对现有机械臂仿真试验台开放性和可视化程度不足等问题，本文基于QT架构与VTK工具自主设计了一款机械臂仿真试验台.试验台的机械臂基于D-H坐标系，利用VTK库进行了仿真.程序设计根据任务框图采用模块化方法，并通过MVS模型进行整体统筹调度，并以按摩机械臂为对象进行仿真和按摩实验.结果表明，按摩机械臂整体误差不超过7 mm，能根据任务需求二次开发，实现了交互界面和误差数据可视化，整体精度控制满足项目需求，该试验台具备快速开发、可迭代和可视化等优势.

关键词：机械臂机器视觉仿真试验台可视化

On-chip spiking neural networks based on add-drop ring microresonators and electrically reconfigurable phase-change material photonic switches

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Photonics Research 2024年第4期12卷 755-766页

作者： QIANG ZHANG NING JIANG YIQUN ZHANG ANRAN LI HUANHUAN xiong GANG HU YONGSHENG CAO kun QIU School of Information and Communication Engineering University of Electronic Science and Technology of ChinaChengdu 611731China

We propose and numerically demonstrate a photonic computing primitive designed for integrated spiking neural networks (SNNs) based on add-drop ring microresonators (ADRMRs) and electrically reconfigurable phasechange material (PCM) photonic switches. In this neuromorphic system, the passive silicon-based ADRMR,equipped with a power-tunable auxiliary light, effectively demonstrates nonlinearity-induced dual neural dynamics encompassing spiking response and synaptic plasticity that can generate single-wavelength optical neural spikes with synaptic weight. By cascading these ADRMRs with different resonant wavelengths, weighted multiple-wavelength spikes can be feasibly output from the ADRMR-based hardware arrays when external wavelengthaddressable optical pulses are injected;subsequently, the cumulative power of these weighted output spikes is utilized to ascertain the activation status of the reconfigurable PCM photonic switches. Moreover, the reconfigurable mechanism driving the interconversion of the PCMs between the resonant-bonded crystalline states and the covalent-bonded amorphous states is achieved through precise thermal modulation. Drawing from the thermal properties, an innovative thermodynamic leaky integrate-and-firing (TLIF) neuron system is proposed. With the TLIF neuron system as the fundamental unit, a fully connected SNN is constructed to complete a classic deep learning task:the recognition of handwritten digit patterns. The simulation results reveal that the exemplary SNN can effectively recognize 10 numbers directly in the optical domain by employing the surrogate gradient algorithm. The theoretical verification of our architecture paves a whole new path for integrated photonic SNNs, with the potential to advance the field of neuromorphic photonic systems and enable more efficient spiking information processing.

关键词： neural networks precise